Frequently Asked C++ programming Interview questions and answers pdf for freshers and experienced
1. What do you know about C++?
Ans:
C++ is a general-purpose programming language. It has
imperative, object-oriented and generic programming features, while also
providing facilities for low-level memory manipulation.It can be used to create
small programs or large applications. C++ allows us to create programs to do
almost anything we need to do.
2. Explain what is a class in C++?
Ans:
A class in C++ can be defined as a collection of function
and related data under a single name. It is a blueprint of objects. A C++
program can consist of any number of classes.
3. How can you specify a class in C++?
Ans:
By using the keyword class followed by identifier (name of
class) you can specify the class in C++.
Inside curly brackets, body of the class is defined. It is
terminated by semi-colon in the end.
For example,
class name{
/ / some data
/ / some functions
} ;
4. What do you mean by internal linking and external linking in c++?
Ans:
A symbol is said to be linked internally when it can be
accessed only from with-in the scope of a single translation unit. By external
linking a symbol can be accessed from other translation units as well. This
linkage can be controlled by using static and extern keywords.
5. What do you mean by storage classes?
Ans:
Storage class are used to specify the visibility/scope
and life time of symbols(functions and variables). That means, storage classes
specify where all a variable or function can be accessed and till what time
those variables will be available during the execution of program.
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